--- title: "ColossalAI vs viewflow" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/hpcaitech-colossalai-vs-viewflow-viewflow" tools: ["hpcaitech-colossalai", "viewflow-viewflow"] --- # ColossalAI vs viewflow *GraphCanon updated Jul 15, 2026* ## Verdict Pick ColossalAI when license: ColossalAI is Apache-2.0, viewflow is AGPL-3.0; pick viewflow when license: viewflow is AGPL-3.0, ColossalAI is Apache-2.0. [ColossalAI](https://www.colossalai.org) reports 41k GitHub stars, 4.5k forks, and 499 open issues, last pushed Jul 13, 2026. [viewflow](http://viewflow.io) has 2.9k stars, 412 forks, and 9 open issues, last pushed Jul 6, 2026. Figures are from public GitHub metadata via [ColossalAI's repository](https://github.com/hpcaitech/ColossalAI) and [viewflow's repository](https://github.com/viewflow/viewflow). | | [ColossalAI](/tools/hpcaitech-colossalai.md) | [viewflow](/tools/viewflow-viewflow.md) | | --- | --- | --- | | Tagline | Making large AI models cheaper, faster and more accessible | Reusable workflow library for Django | | Stars | 41,413 | 2,865 | | Forks | 4,502 | 412 | | Open issues | 499 | 9 | | Language | Python | Python | | Adopt for | ColossalAI is a Python library that leverages advanced parallelism techniques for more efficient and cost-effective development of large-scale AI models. | - | | Persona | - | - | | Runtime | - | - | | License | Apache-2.0 | AGPL-3.0 | | Categories | Inference & Serving, Model Training | Inference & Serving | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [ColossalAI](/tools/hpcaitech-colossalai.md) | [viewflow](/tools/viewflow-viewflow.md) | | --- | --- | --- | | Maintenance | Very active (96%) | Active (82%) | | Days since push | 0d | 9d | | Open issues (now) | 499 | 9 | | Full report | [trust report](/tools/hpcaitech-colossalai/trust.md) | [trust report](/tools/viewflow-viewflow/trust.md) | ## Shared compatibility - **Python**: [ColossalAI](/tools/hpcaitech-colossalai.md) - Python runtime; [viewflow](/tools/viewflow-viewflow.md) - Python runtime ## Decision facts: ColossalAI - **Adopt for:** ColossalAI is a Python library that leverages advanced parallelism techniques for more efficient and cost-effective development of large-scale AI models. ## Choose when ### Choose ColossalAI if… - License: ColossalAI is Apache-2.0, viewflow is AGPL-3.0. - Tags unique to ColossalAI: ai, big model, data-parallelism, deep-learning. - Also covers Model Training. - You require handling extremely large AI models with massive context windows, such as over 2M tokens. ### Choose viewflow if… - License: viewflow is AGPL-3.0, ColossalAI is Apache-2.0. - Tags unique to viewflow: bpmn, django, process-engine, python. - Leaner open-issue backlog (9). ## When NOT to use ColossalAI - You are working in an environment that does not support Linux OS, as ColossalAI currently offers no support for other operating systems. - Your current CUDA version is less than 11.0 or your GPU compute capability is below 7.0 (pre-V100/RTX20 series). - You cannot satisfy the minimum hardware and software requirements specified, such as PyTorch >= 2.2 and Python >= 3.7. ## When NOT to use viewflow - Inference & Serving: Self-hosting rarely beats a hosted API on cost until you have steady, high-volume traffic. ## Common questions ### What is the difference between ColossalAI and viewflow? ColossalAI: Making large AI models cheaper, faster and more accessible. viewflow: Reusable workflow library for Django. See the comparison table for live GitHub stats and shared categories. ### When should I choose ColossalAI over viewflow? Choose ColossalAI over viewflow when License: ColossalAI is Apache-2.0, viewflow is AGPL-3.0; Tags unique to ColossalAI: ai, big model, data-parallelism, deep-learning; Also covers Model Training; You require handling extremely large AI models with massive context windows, such as over 2M tokens. ### When should I choose viewflow over ColossalAI? Choose viewflow over ColossalAI when License: viewflow is AGPL-3.0, ColossalAI is Apache-2.0; Tags unique to viewflow: bpmn, django, process-engine, python; Leaner open-issue backlog (9). ### When should I avoid ColossalAI? You are working in an environment that does not support Linux OS, as ColossalAI currently offers no support for other operating systems. Your current CUDA version is less than 11.0 or your GPU compute capability is below 7.0 (pre-V100/RTX20 series). You cannot satisfy the minimum hardware and software requirements specified, such as PyTorch >= 2.2 and Python >= 3.7. ### When should I avoid viewflow? Inference & Serving: Self-hosting rarely beats a hosted API on cost until you have steady, high-volume traffic. ### Is ColossalAI or viewflow more popular on GitHub? ColossalAI has more GitHub stars (41,413 vs 2,865). Stars measure visibility, not whether either tool fits your constraints. ### Are ColossalAI and viewflow open source? Yes - both are open-source projects on GitHub (ColossalAI: Apache-2.0, viewflow: AGPL-3.0). ### Where can I find alternatives to ColossalAI or viewflow? GraphCanon lists graph-backed alternatives at [ColossalAI alternatives](/tools/hpcaitech-colossalai/alternatives) and [viewflow alternatives](/tools/viewflow-viewflow/alternatives) ([ColossalAI markdown twin](/tools/hpcaitech-colossalai/alternatives.md), [viewflow markdown twin](/tools/viewflow-viewflow/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/hpcaitech-colossalai-vs-viewflow-viewflow.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, ColossalAI or viewflow? ColossalAI: Very active. viewflow: Active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for ColossalAI and viewflow? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [ColossalAI trust report](/tools/hpcaitech-colossalai/trust); [viewflow trust report](/tools/viewflow-viewflow/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=hpcaitech-colossalai`](/api/graphcanon/graph?tool=hpcaitech-colossalai) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_